What is OIS and WD

I have been trying to figure out what this is. Can anyone help me?

Hi there!

Welcome to the community!

  • OIS = On-board Information System
  • WD = Warning Display

Just to add to his question, do you know what it does or if it’s just supposed to be there?

Unfortunately those systems aren’t implemented in IF.


On the A350, the EFB is integrated with the Onboard Information Systems (OIS) display. It helps the Flight Crew manage tasks more easily and efficiently with less paper . The OIS is also integrated with the KCCU. Furthermore, it benefits from the ‘OIS on centre’ function to improve crew coordination during briefings.


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